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Electric Insact Trap.
Patent for an electric insect trap that highly efficient trap for electrocuting house flies and similar insects, include illustrations.
Date:
January 20, 1914
Creator:
Craig, Samuel A.
System:
The Portal to Texas History
Railway-Switch
Patent for improvements in railway switches which are especially adapted for use on street railway tracks.
Date:
January 20, 1914
Creator:
Craig, Samuel A.
System:
The Portal to Texas History